| Temperature distribution for controlled-dwell extrusion of gamma-TiAl |
| Liu, D; Bai, CG; Cui, YY; Yang, R
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| 通讯作者 | Yang, R()
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| 2005-06-01
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| 发表期刊 | JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY
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| ISSN | 1005-9784
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| 卷号 | 12期号:3页码:276-279 |
| 摘要 | Ti-47Al-2Cr-2Nb-0. 15B alloy (atom fraction) was extruded at temperatures(T-alpha) of 1250 and 1330 degrees C, respectively. The method of adding a thermal insulating layer was used to overcome the problem associated with the flow stress mismatch between the can and the billet during extrusion. Effects of two kinds of insulations, ZrO2 powders and silica fibers, on the quality of extrude bar along the radial direction were studied, and the process parameters were optimized by combining with finite element method (FEM). Tensile properties of the extruded alloy at room and elevated temperature were tested. The results show that the silica fibers has better thermal insulating property than ZrO2 powders. The temperature distribution in radial is more homogeneous using silica fibers. The alloy has a good balance of yield strength and room temperature ductility and the values are 680 MPa and 3.5 %, respectively. |
| 关键词 | TiAl alloy
controlled-dwell extrusion
can
temperature gradient
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| 收录类别 | SCI
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| 语种 | 英语
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| WOS研究方向 | Metallurgy & Metallurgical Engineering
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| WOS类目 | Metallurgy & Metallurgical Engineering
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| WOS记录号 | WOS:000230222400010
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| 出版者 | JOURNAL OF CENTRAL SOUTH UNIV TECHNOLOGY
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/84416
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| 专题 | 中国科学院金属研究所
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| 通讯作者 | Yang, R |
| 作者单位 | Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China
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推荐引用方式
GB/T 7714 |
Liu, D,Bai, CG,Cui, YY,et al. Temperature distribution for controlled-dwell extrusion of gamma-TiAl[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY,2005,12(3):276-279.
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| APA |
Liu, D,Bai, CG,Cui, YY,&Yang, R.(2005).Temperature distribution for controlled-dwell extrusion of gamma-TiAl.JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY,12(3),276-279.
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| MLA |
Liu, D,et al."Temperature distribution for controlled-dwell extrusion of gamma-TiAl".JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY 12.3(2005):276-279.
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